1 . Every year about 40,000 people attempt to climb Kilimanjaro, the highest mountain in Africa. They _______ with them lots of waste. The _______ might damage the beauty of the place. The glaciers(冰川) are disappearing, changing the _______ of Kilimanjaro.

Hearing these stories, I’m _______ about the place — other destinations are described as “purer” natural experiences.

However, I soon _______ that much has changed since the days of disturbing reports of _______ among tons of rubbish. I find a _______ mountain, with toilets at camps and along the paths. The environmental challenges are _______ but the efforts made by the Tanzania National Park Authority seem to be _______.

The best of a Kilimanjaro ________, in my opinion, isn’t reaching the top. Mountains are ________ as spiritual places by many cultures. This ________ is especially evident on Kilimanjaro as ________ go through five ecosystems(生态系统) in the space of a few kilometers. At the base is a rainforest. It ends abruptly at 3, 000 meters, ________ lands of low growing plants. Further up, the weather ________ — low clouds envelope the mountainsides, which are covered with thick grass. I ________ twelve shades of green from where I stand. Above 4, 000 meters is the highland ________: gravel(砾石), stones and rocks. ________ you climb into an arctic-like zone with ________ snow and the glaciers that may soon disappear.

Does Kilimanjaro ________ its reputation as a crowded mountain with lines of tourists ruining the atmosphere of peace? I found the opposite to be true.

2 . In our modern world, when something wears out, we throw it away and buy a new one. The _______ is that countries around the world have growing mountains of _______ because people are throwing out more rubbish than ever before.

How did we _______ a throwaway society? First of all, it is now easier to _______ an object than to spend time and money to repair it. _______ modern manufacturing (制造业)and technology, companies are able to produce products quickly and inexpensively. Products are plentiful and _______.

Another cause is our _______of disposable (一次性的) products. As _______ people, we are always looking for _______ to save time and make our lives easier. Companies ________ thousands of different kinds of disposable products: paper plates, plastic cups, and cameras, to name a few.

Our appetite for new products also ________ to the problem. We are ________ buying new things. Advertisements persuade us that ________ is better and that we will be happier with the latest products. The result is that we ________ useful possessions to make room for new ones.

All around the world, we can see the ________ of this throwaway lifestyle. Mountains of rubbish just keep getting bigger. To ________ the amount of rubbish and to protect the ________, more governments are requiring people to recycle materials. ________, this is not enough to solve (解决) our problem.

Maybe there is another way out. We need to repair our possessions ________ throwing them away. We also need to rethink our attitudes about ________. Repairing our possessions and changing our spending habits may be the best way to reduce the amount of rubbish and take care of our environment.

3 . In the past, man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be _______.

Today things are _______. The world has become too _______. We are using up our natural resources too quickly, and at the same time we are _______ our environment with dangerous chemicals. If we continue to do this, human life on the earth _______ not survive (生存).

Everyone _______ today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing _______, more and more fish are caught. We know that if too many trees are cut down, _______ will disappear and nothing will grow on the land. Yet, we _______ to use bigger and more powerful machines to ________ more and more trees.

We realize that if rivers are polluted with waste products from factories, we will die. ________, in most countries wastes are ________ put into rivers or into the sea, and there are ________ laws to stop this.

We know, too, that if the ________ of the world continues to rise at the present rate, in a few years there will not be enough ________. What can we do to solve these problems?

If we eat more vegetables and less ________, there will be more food available for everyone. Land that is used to grow crops ________ five times more people than land where animals are kept.

Our natural resources will ________ longer if we learn to recycle them.

The world population will not rise so quickly if people use modern methods of birth ________.

Finally, if we educate people to think about the problems, we shall have a better and clearer ________ in the future.